1st crewed round-trip to Mars could take about 2 years: NASA
"Other options could require crew to be on the surface for more than a year and away from Earth for as long as three years, but it will be a long time before we have the funding, technology, supplies, and capabilities to sustain such a mission," said Bridenstine.
NASA will use advanced propulsion systems to enable a faster journey to the Red Planet while limiting radiation exposure for its astronauts and other mission risks, Photo: Reuters